APA (7th ed.) Citation
(1991). Michael E. Porter on Competition and Strategy (7. ed.). Harvard Business Review.
Chicago Style (17th ed.) Citation
Michael E. Porter on Competition and Strategy. 7. ed. Boston: Harvard Business Review, 1991.
MLA (9th ed.) Citation
Michael E. Porter on Competition and Strategy. 7. ed. Harvard Business Review, 1991.
Warning: These citations may not always be 100% accurate.